EP0496829A4 - Lpc based speech synthesis with adaptive pitch prefilter - Google Patents
Lpc based speech synthesis with adaptive pitch prefilterInfo
- Publication number
- EP0496829A4 EP0496829A4 EP19900916987 EP90916987A EP0496829A4 EP 0496829 A4 EP0496829 A4 EP 0496829A4 EP 19900916987 EP19900916987 EP 19900916987 EP 90916987 A EP90916987 A EP 90916987A EP 0496829 A4 EP0496829 A4 EP 0496829A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- signal
- pitch
- excitation signal
- speech
- excitation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/26—Pre-filtering or post-filtering
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Computational Linguistics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Noise Elimination (AREA)
- Stereophonic System (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US42287189A | 1989-10-17 | 1989-10-17 | |
US422871 | 1989-10-17 | ||
PCT/US1990/005191 WO1991006091A1 (en) | 1989-10-17 | 1990-09-17 | Lpc based speech synthesis with adaptive pitch prefilter |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0496829A1 EP0496829A1 (en) | 1992-08-05 |
EP0496829A4 true EP0496829A4 (en) | 1993-08-18 |
EP0496829B1 EP0496829B1 (en) | 2000-12-06 |
Family
ID=23676771
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90916987A Expired - Lifetime EP0496829B1 (en) | 1989-10-17 | 1990-09-17 | Lpc based speech synthesis with adaptive pitch prefilter |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0496829B1 (en) |
CN (1) | CN1051100A (en) |
AU (1) | AU644119B2 (en) |
CA (1) | CA2066568A1 (en) |
DE (1) | DE69033672T2 (en) |
WO (1) | WO1991006091A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3328080B2 (en) * | 1994-11-22 | 2002-09-24 | 沖電気工業株式会社 | Code-excited linear predictive decoder |
GB9512284D0 (en) * | 1995-06-16 | 1995-08-16 | Nokia Mobile Phones Ltd | Speech Synthesiser |
DE19629946A1 (en) * | 1996-07-25 | 1998-01-29 | Joachim Dipl Ing Mersdorf | LPC analysis and synthesis method for basic frequency descriptive functions |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1980002211A1 (en) * | 1979-03-30 | 1980-10-16 | Western Electric Co | Residual excited predictive speech coding system |
EP0294020A2 (en) * | 1987-04-06 | 1988-12-07 | Voicecraft, Inc. | Vector adaptive coding method for speech and audio |
-
1990
- 1990-09-17 WO PCT/US1990/005191 patent/WO1991006091A1/en active IP Right Grant
- 1990-09-17 AU AU67256/90A patent/AU644119B2/en not_active Expired
- 1990-09-17 EP EP90916987A patent/EP0496829B1/en not_active Expired - Lifetime
- 1990-09-17 DE DE69033672T patent/DE69033672T2/en not_active Expired - Lifetime
- 1990-09-17 CA CA 2066568 patent/CA2066568A1/en not_active Abandoned
- 1990-10-15 CN CN 90108434 patent/CN1051100A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1980002211A1 (en) * | 1979-03-30 | 1980-10-16 | Western Electric Co | Residual excited predictive speech coding system |
EP0294020A2 (en) * | 1987-04-06 | 1988-12-07 | Voicecraft, Inc. | Vector adaptive coding method for speech and audio |
Non-Patent Citations (4)
Title |
---|
ADVANCES IN SPEECH CODING-IEEE WORKSHOP ON SPEECH CODING FOR TELECOMMUNICATIONS/ 1991, DORDRECHT NL- VANCOUVER CANADA pages 69 - 79 GERSON JASIUK 'Vector sum excited linear prediction' * |
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS vol. 6, no. 2, February 1988, NEW YORK USA pages 353 - 363 KROON, DEPRETTERE 'A class of analysis by synthesis predictive coders...' * |
INTERNATIONAL CONFERENCE ON ACOUSTICS SPEECH AND SIGNAL PROCESSING vol. 1, 30 March 1981, ATLANTA, USA pages 118 - 120 HOLM 'Automatic generation of mixed excitation in a linear predictive speech synthesizer' * |
See also references of WO9106091A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0496829A1 (en) | 1992-08-05 |
DE69033672D1 (en) | 2001-01-11 |
DE69033672T2 (en) | 2001-05-10 |
WO1991006091A1 (en) | 1991-05-02 |
AU644119B2 (en) | 1993-12-02 |
AU6725690A (en) | 1991-05-16 |
CA2066568A1 (en) | 1991-04-18 |
EP0496829B1 (en) | 2000-12-06 |
CN1051100A (en) | 1991-05-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP3483891B2 (en) | Speech coder | |
DE69634179T2 (en) | Method and apparatus for speech coding and decoding | |
EP0294020A3 (en) | Vector adaptive coding method for speech and audio | |
EP1125285B1 (en) | Periodicity enhancement in decoding wideband signals | |
EP0770988A3 (en) | Speech decoding method and portable terminal apparatus | |
EP1959435A3 (en) | Speech encoder | |
CA2160749A1 (en) | Speech Coding Apparatus, Speech Decoding Apparatus, Speech Coding and Decoding Method and a Phase Amplitude Characteristic Extracting Apparatus for Carrying Out the Method | |
CN1591575A (en) | Method and arrangement for synthesizing speech | |
WO1999046764A3 (en) | Speech coding | |
JP3483853B2 (en) | Application criteria for speech coding | |
AU644119B2 (en) | Lpc based speech synthesis with adaptive pitch prefilter | |
US6704701B1 (en) | Bi-directional pitch enhancement in speech coding systems | |
US5241650A (en) | Digital speech decoder having a postfilter with reduced spectral distortion | |
EP1073039A3 (en) | Speech decoder with gain processing | |
EP0570362B1 (en) | Digital speech decoder having a postfilter with reduced spectral distortion | |
JPH10143195A (en) | Post filter | |
EP1083548A3 (en) | Method for gain control of a CELP speech decoder | |
JPH09146599A (en) | Sound coding device | |
JPH0876799A (en) | Wide band voice signal restoration method | |
JP2650355B2 (en) | Voice analysis and synthesis device | |
CA2513842A1 (en) | Apparatus and method for speech coding | |
JP2005025216A (en) | Speech decoding device and method therefor | |
CA2224688A1 (en) | Speech coder |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19920514 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 19930702 |
|
AK | Designated contracting states |
Kind code of ref document: A4 Designated state(s): DE FR GB |
|
17Q | First examination report despatched |
Effective date: 19960514 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
RIC1 | Information provided on ipc code assigned before grant |
Free format text: 7G 10L 19/08 A |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB |
|
ET | Fr: translation filed | ||
REF | Corresponds to: |
Ref document number: 69033672 Country of ref document: DE Date of ref document: 20010111 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20090807 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20090930 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20100916 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20100916 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20090916 Year of fee payment: 20 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20100917 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230520 |